Popup Builder for Contact Capture & SMS Opt-in Consent
Turn your website visitors into SMS subscribers. Popup forms with a drag-and-drop editor, A/B testing and smart triggers, no coding required.
16+ Templates
Ready-made popup designsA/B Testing
Conversion optimization4 Layouts
Center, slide-in, full screen, barsGDPR Ready
Full complianceSo you always stay one step ahead of the competition
Every form type, for every goal
You need more than popups. Combine different form types to engage visitors in the way that fits your website and your audience.
16 ready-made templates, pick one and get started
Flexible form types
Combine popups, slide-ins, full-screen overlays, top and bottom bars to grab attention in the way that works best for you.
Full customization
Colors, fonts, images, animations, countdown timers, custom CSS. Every element of the form adapts to your brand identity.
Precise targeting
Filter by URL, device, visitor type and time window. Control where and when each form appears.
Popup Forms
The classic and most effective format. It appears in the center of the screen and grabs attention instantly. Ideal for discount codes and SMS opt-in consent. Customize size, colors, animations and display timing.
Slide-in
Appears discreetly from the corner of the screen without interrupting the visitor. Less intrusive than a popup, ideal for gentle calls to action and announcements.
Full-Screen Overlay
Covers the entire screen for maximum impact. Ideal for flash sales, seasonal offers or events you want nobody to miss. Impossible to overlook.
Opt-in Consent on WordPress & WooCommerce
Embed popup forms on your WordPress or WooCommerce website with our WordPress plugin. Collect SMS opt-in consent at checkout too, with no code, just a plugin install.
Top / Bottom Bar
A slim bar at the top or bottom of the page, unobtrusive but always visible. Perfect for announcements, discount codes or a call-to-action button to join your SMS list.
Multi-Step Forms
Break the form into steps for a better user experience. Ask for the phone number first, then the name, then interests. Higher completion rates compared to single-step forms.
Full control over the look, no code
Design popup forms that perfectly match your brand identity. The visual editor gives you full control over colors, fonts, images and animations, without writing a single line of code.
Choose one of the 16+ ready-made templates covering the most common scenarios (discounts, welcome, exit intent, VIP list and more) or start from a blank canvas. Every element is fully customizable.
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16 ready-made templates (Discount, VIP, Welcome, Exit Intent and more)
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5 layouts: Center, Full Screen, Slide-in, Top Bar, Bottom Bar
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Media library: upload up to 20 images or search via Unsplash
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Custom fonts, colors, sizes and animations (fade, slide, bounce, scale)
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Countdown timer to add urgency to flash sales and offers
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Custom CSS for advanced users (up to 5,000 characters)
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WordPress & WooCommerce plugin for instant integration
Show at the right moment, to the right audience
Timing determines the conversion rate. Set when the form appears: after X seconds, when the visitor is about to leave (exit intent), after scrolling or on a manual trigger.
Filter by page URL, device (mobile/desktop), visitor type (new/returning) and time window. Control how often it appears to each visitor: once, once per session or once every X days.
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Timed trigger: show after 1-120 seconds
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Exit intent: capture visitors before they leave
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Scroll depth: show at 10-100% of the scroll
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URL targeting: exact match, contains, starts with or regex
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Device targeting: mobile, desktop or both
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Visitor type: new or returning visitor
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Scheduling: display start & end date
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Frequency: once, once per session or once every X days
A/B Testing for maximum conversion
Create multiple variants of the same popup at once. Change the headline, colors, call-to-action button, offer or success message and see what works best with real data.
The platform automatically splits visitors across variants by weight, measures each one's conversion rate, and can pick the winner automatically once enough data has been collected.
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Unlimited variants per popup
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Weighted traffic split (adjustable weights 1-100%)
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Views, submissions & conversion rate in real time per variant
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Auto winner: automatic winner selection based on a threshold
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Sticky variants: each visitor always sees the same variant
"Get 10% off"
Headline with a discount percentage & blue call-to-action button.
"Free shipping today"
Headline with a shipping offer & orange call-to-action button.
Sample data. The platform automatically selects the winning variant once a statistically significant sample has been collected.
Create variants
Duplicate the popup and change the headline, colors, call-to-action button or offer. Set the traffic weight of each variant.
Measure in real time
The platform automatically splits visitors and tracks views, submissions & conversion rate per variant.
Keep the winner
Choose manually or let auto winner activate the best-performing variant automatically.
A complete design environment
Every popup is fully customizable. Change colors, text, fonts, sizes, images and animations with no coding knowledge at all. Just drag, drop and publish.
For advanced users, custom CSS lets you achieve exactly the result you want, while the live preview shows you how the form looks before you publish it.
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Background, button and text colors with a full color palette
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Fonts & size for the headline (12-72px) and body text (10-36px)
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Media library: upload up to 20 images or search via Unsplash
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Rounded corners (0-50px) & shadow intensity (none, light, medium, strong)
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Animations: fade, slide up/down, scale, bounce, 6 options in total
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Countdown timer with an adjustable end date
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Custom CSS (up to 5,000 characters) for total freedom
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Field toggles: show/hide the name field, custom labels
Measure everything, keep improving
Track views, submissions and conversion rate per popup in real time. See which forms perform best and which need optimization.
Export contacts to CSV or Excel for bulk SMS or use them directly in the platform. Per-form duplicate detection prevents double signups.
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Views, submissions, conversion rate in real time
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Export contacts to CSV (Excel compatible, UTF-8)
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Duplicate detection to avoid double signups
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Rate limiting: 5 submissions/IP/hour against spam
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Honeypot protection to block bots automatically
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Contact verification: verified, mismatch or new status
GDPR compliance from the start
Full GDPR compliance. Every form can include a consent checkbox, SMS double opt-in, 18+ age verification, a link to your terms of use and a compliance footer.
Collect consent safely and transparently. Visitors know exactly what they are agreeing to, and you are legally covered.
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Consent checkbox, required before submission
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Double opt-in via SMS
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18+ age verification where required
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Link to terms of use & privacy policy
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Compliance footer on every form
Why You Need Popup Forms on Your Website
Popup forms are the most effective way to build your contact list for SMS marketing campaigns. Here is how our customers in Greece use them.
E-commerce & Retail
Turn your online store visitors into customers. Offer a discount code in exchange for SMS opt-in consent, then send bulk SMS with offers, flash sales and back-in-stock alerts.
SMS campaigns have a 98% open rate. The contacts you collect can be exported to Excel or used directly for bulk SMS campaigns.
Hotels & Tourism
Collect guest phone numbers with a welcome popup on your hotel website. Send seasonal offers, early booking deals and special rates for returning guests via SMS or Viber.
Ideal for last-minute offers, arrival notifications and upselling spa, restaurant or activity services during the stay.
Health & Beauty
Clinics, medical practices, hair salons and spas can collect phone numbers through popup forms and then send automated appointment reminders via SMS.
Reduce no-shows, send birthday offers and announce new services. Phone numbers from the appointment form are collected fully automatically.
Education & Events
Tutoring centers, schools and event organizers can use popup forms for interest signups, early-bird registrations and VIP access to events.
The contacts you collect are stored in iSend and you can use them right away for SMS marketing campaigns or automated messages.
From form to bulk SMS in seconds
Every contact collected through a popup form is saved automatically to your iSend contact lists. No manual import needed. New subscribers are immediately available for SMS and Viber campaigns.
Want to work with the data outside the platform? Export contacts to Excel or CSV, or use the REST API to integrate with your own system.
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Contacts saved automatically to the contact group of your choice
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Export to CSV (Excel compatible) to send SMS from Excel
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WordPress & WooCommerce plugin with opt-in consent at checkout
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One script tag or data-customer-id for all your popups at once
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Built-in double opt-in with automatic signup confirmation
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Automatic welcome SMS through automation flows
Popup Builder FAQ
Find answers to the most common questions about popup forms, contact collection and SMS marketing.
A popup form (or web form) is an interactive element that appears on your website to collect contact details (phone number) from visitors. It is the most effective way to build your list for SMS marketing and bulk SMS.
According to industry statistics, a well-designed popup form can achieve a 3-10% conversion rate, which means that for every 1,000 visitors, 30-100 will become subscribers.
Integration is very simple: you copy a small code snippet (a script tag) and paste it into your website. It works with every platform: WordPress, Shopify, WooCommerce, Magento, custom HTML sites and any CMS.
No programming knowledge is needed. Once you add the code, the popup appears automatically according to the rules you have set (time, exit intent, scroll, etc.).
Yes, the iSend Popup Builder is fully designed for GDPR compliance. Every form can include:
- Consent checkbox, required before submission
- SMS double opt-in, signup confirmation via SMS
- Age verification, 18+ check where required
- Terms link, a link to your terms of use and privacy policy
For more information, see our GDPR page.
Absolutely. That is exactly what the Popup Builder is for. Every phone number collected is saved automatically to your iSend contact lists, and you can immediately:
- Send bulk SMS through SMS campaigns
- Set up automatic welcome SMS for new subscribers
- Send messages via Viber Business
- Export contacts to Excel or CSV for use in other tools
See our SMS marketing pricing for a detailed cost per message.
An exit intent popup appears the moment a visitor is about to leave your website (moving the mouse toward the close button or the address bar). It is your last chance to turn them into a subscriber.
Exit intent popups usually achieve a higher conversion rate because they appear at a critical moment. Pair them with an attractive incentive (e.g. 10% off, free shipping) for maximum effect.
A/B testing lets you test two different variants of the same popup at the same time. You can change anything: headline, colors, call-to-action text, offer, image or display timing.
The platform automatically splits visitors 50/50 between the two variants, measures each one's conversion rate, and shows you the winner. This way you gradually improve your results based on data.
Yes. All contacts collected from popup forms can be exported to Excel (.xlsx) or CSV. This is useful if you want to:
- Analyze the data in Excel
- Import the contacts into a CRM or ERP system
- Create reports for management
However, to send SMS from Excel you do not need to export anything. You can send directly through the iSend platform using the contact lists that are built automatically.
Yes, all popup forms are fully responsive and optimized for mobile. You can also target mobile users exclusively or show a different form on mobile versus desktop.
Mobile popups are designed with larger buttons and input fields for easy use on touch screens, while respecting Google's guidelines for mobile-friendly interstitials.
Start collecting contacts today
Create your first popup form in minutes.
No code, no setup fees. Request a demo and watch your list grow.
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